diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c index 7c9c8e2d9f7..54c0ad7ce43 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c @@ -325,6 +325,18 @@ lp_build_sample_texel_soa(struct lp_build_sample_context *bld, bld->format_desc, x, y, z, y_stride, z_stride); + if (use_border) { + /* If we can sample the border color, it means that texcoords may + * lie outside the bounds of the texture image. We need to do + * something to prevent reading out of bounds and causing a segfault. + * + * Simply AND the texture coords with !use_border. This will cause + * coords which are out of bounds to become zero. Zero's guaranteed + * to be inside the texture image. + */ + offset = lp_build_andc(&bld->uint_coord_bld, offset, use_border); + } + lp_build_fetch_rgba_soa(bld->builder, bld->format_desc, bld->texel_type, |